DBC-Zorgproducten per jaar, specialisme, diagnose

Dataset statistics

Number of variables	14
Number of observations	248258
Missing cells	40673
Missing cells (%)	1.2%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	26.5 MiB
Average record size in memory	112.0 B

Variable types

NUM	9
CAT	3
DATE	1
BOOL	1

Warnings

`VERSIE` has constant value "248258"	Constant
`DATUM_BESTAND` has constant value "248258"	Constant
`PEILDATUM` has constant value "248258"	Constant
`TYPERENDE_DIAGNOSE_CD` has a high cardinality: 1766 distinct values	High cardinality
`AANTAL_SUBTRAJECT_PER_ZPD` is highly correlated with `AANTAL_PAT_PER_ZPD`	High correlation
`AANTAL_PAT_PER_ZPD` is highly correlated with `AANTAL_SUBTRAJECT_PER_ZPD`	High correlation
`AANTAL_SUBTRAJECT_PER_DIAG` is highly correlated with `AANTAL_PAT_PER_DIAG`	High correlation
`AANTAL_PAT_PER_DIAG` is highly correlated with `AANTAL_SUBTRAJECT_PER_DIAG`	High correlation
`AANTAL_SUBTRAJECT_PER_SPC` is highly correlated with `AANTAL_PAT_PER_SPC`	High correlation
`AANTAL_PAT_PER_SPC` is highly correlated with `AANTAL_SUBTRAJECT_PER_SPC`	High correlation
`GEMIDDELDE_VERKOOPPRIJS` has 40673 (16.4%) missing values	Missing
`AANTAL_SUBTRAJECT_PER_ZPD` is highly skewed (γ1 = 21.19022168)	Skewed

Reproduction

Analysis started	2020-09-06 22:36:21.016456
Analysis finished	2020-09-06 22:36:49.545942
Duration	28.53 seconds
Software version	pandas-profiling v2.9.0
Download configuration	config.yaml

VERSIE
Boolean

CONSTANT
REJECTED

Distinct	1
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	1.9 MiB

1	248258

Common Values
Chart

Value	Count	Frequency (%)
1	248258	100.0%

DATUM_BESTAND
Categorical

CONSTANT
REJECTED

Distinct	1
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	1.9 MiB

2020-07-21	248258

Frequencies
Length

Value	Count	Frequency (%)
2020-07-21	248258	100.0%

Frequencies of value counts

Unique

Unique	0 ?
Unique (%)	0.0%

Histogram of lengths of the category

Length

Max length	10
Median length	10
Mean length	10
Min length	10

PEILDATUM
Categorical

CONSTANT
REJECTED

Distinct	1
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	1.9 MiB

2020-07-01	248258

Frequencies
Length

Value	Count	Frequency (%)
2020-07-01	248258	100.0%

Frequencies of value counts

Unique

Unique	0 ?
Unique (%)	0.0%

Histogram of lengths of the category

Length

Max length	10
Median length	10
Mean length	10
Min length	10

JAAR
Date

Distinct	9
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	1.9 MiB

Minimum	2012-01-01 00:00:00
Maximum	2020-01-01 00:00:00

Histogram

Histogram with fixed size bins (bins=9)

BEHANDELEND_SPECIALISME_CD
Real number (ℝ_≥0)

Distinct	27
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	423.6569899
Minimum	301
Maximum	8418
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	301
5-th percentile	302
Q1	305
median	313
Q3	322
95-th percentile	335
Maximum	8418
Range	8117
Interquartile range (IQR)	17

Descriptive statistics

Standard deviation	929.0263119
Coefficient of variation (CV)	2.192873797
Kurtosis	69.91205688
Mean	423.6569899
Median Absolute Deviation (MAD)	8
Skewness	8.473463086
Sum	105176237
Variance	863089.8881
Monotocity	Not monotonic

Histogram with fixed size bins (bins=27)

Value	Count	Frequency (%)
305	35119	14.1%
313	32268	13.0%
303	28592	11.5%
330	19976	8.0%
316	16903	6.8%
308	12492	5.0%
324	10303	4.2%
306	10283	4.1%
301	10130	4.1%
304	8132	3.3%
Other values (17)	64060	25.8%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
301	10130	4.1%
302	5384	2.2%
303	28592	11.5%
304	8132	3.3%
305	35119	14.1%

Value	Count	Frequency (%)
8418	3301	1.3%
1900	162	0.1%
390	616	0.2%
389	2709	1.1%
362	3826	1.5%

TYPERENDE_DIAGNOSE_CD
Categorical

HIGH CARDINALITY

Distinct	1766
Distinct (%)	0.7%
Missing	0
Missing (%)	0.0%
Memory size	1.9 MiB

101	1045
402	1025
403	994
301	993
201	940
Other values (1761)	243261

Frequencies
Length

Common Values
Overview

Value	Count	Frequency (%)
101	1045	0.4%
402	1025	0.4%
403	994	0.4%
301	993	0.4%
201	940	0.4%
203	936	0.4%
401	843	0.3%
404	830	0.3%
409	812	0.3%
802	803	0.3%
Other values (1756)	239037	96.3%

Frequencies of value counts

Unique

Unique	3 ?
Unique (%)	< 0.1%

Histogram of lengths of the category

Length

Max length	4
Median length	3
Mean length	3.347960589
Min length	2

ZORGPRODUCT_CD
Real number (ℝ_≥0)

Distinct	5886
Distinct (%)	2.4%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	438593518.7
Minimum	10501002
Maximum	998418081
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	10501002
5-th percentile	28999036
Q1	99799023
median	149599012
Q3	990004004
95-th percentile	990416042
Maximum	998418081
Range	987917079
Interquartile range (IQR)	890204981

Descriptive statistics

Standard deviation	428548956.9
Coefficient of variation (CV)	0.9770982438
Kurtosis	-1.726751426
Mean	438593518.7
Median Absolute Deviation (MAD)	119599999
Skewness	0.478481953
Sum	1.088843498e+14
Variance	1.836542084e+17
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
990004009	1844	0.7%
990004007	1798	0.7%
990003004	1758	0.7%
990004006	1416	0.6%
990356076	1246	0.5%
990356073	1151	0.5%
990003007	1142	0.5%
131999228	1128	0.5%
131999164	1106	0.4%
199299013	1047	0.4%
Other values (5876)	234622	94.5%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
10501002	6	< 0.1%
10501003	9	< 0.1%
10501004	9	< 0.1%
10501005	9	< 0.1%
10501007	3	< 0.1%

Value	Count	Frequency (%)
998418081	115	< 0.1%
998418080	100	< 0.1%
998418079	27	< 0.1%
998418077	6	< 0.1%
998418076	6	< 0.1%

AANTAL_PAT_PER_ZPD
Real number (ℝ_≥0)

HIGH CORRELATION

Distinct	8621
Distinct (%)	3.5%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	493.6843123
Minimum	1
Maximum	153137
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	1
5-th percentile	1
Q1	2
median	13
Q3	96
95-th percentile	1648
Maximum	153137
Range	153136
Interquartile range (IQR)	94

Descriptive statistics

Standard deviation	3086.960776
Coefficient of variation (CV)	6.252904334
Kurtosis	390.858878
Mean	493.6843123
Median Absolute Deviation (MAD)	12
Skewness	16.55051804
Sum	122561080
Variance	9529326.831
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	41787	16.8%
2	20547	8.3%
3	13214	5.3%
4	9830	4.0%
5	7613	3.1%
6	6396	2.6%
7	5357	2.2%
8	4434	1.8%
9	4062	1.6%
10	3647	1.5%
Other values (8611)	131371	52.9%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1	41787	16.8%
2	20547	8.3%
3	13214	5.3%
4	9830	4.0%
5	7613	3.1%

Value	Count	Frequency (%)
153137	1	< 0.1%
152973	1	< 0.1%
144742	1	< 0.1%
133196	1	< 0.1%
112286	1	< 0.1%

AANTAL_SUBTRAJECT_PER_ZPD
Real number (ℝ_≥0)

HIGH CORRELATION
SKEWED

Distinct	9207
Distinct (%)	3.7%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	575.5768475
Minimum	1
Maximum	239907
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	1
5-th percentile	1
Q1	3
median	14
Q3	105
95-th percentile	1860
Maximum	239907
Range	239906
Interquartile range (IQR)	102

Descriptive statistics

Standard deviation	3891.722316
Coefficient of variation (CV)	6.761429569
Kurtosis	720.4087631
Mean	575.5768475
Median Absolute Deviation (MAD)	13
Skewness	21.19022168
Sum	142891557
Variance	15145502.58
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	40331	16.2%
2	20200	8.1%
3	13111	5.3%
4	9661	3.9%
5	7556	3.0%
6	6395	2.6%
7	5328	2.1%
8	4426	1.8%
9	3986	1.6%
10	3653	1.5%
Other values (9197)	133611	53.8%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1	40331	16.2%
2	20200	8.1%
3	13111	5.3%
4	9661	3.9%
5	7556	3.0%

Value	Count	Frequency (%)
239907	1	< 0.1%
232508	1	< 0.1%
231005	1	< 0.1%
227757	1	< 0.1%
219697	1	< 0.1%

AANTAL_PAT_PER_DIAG
Real number (ℝ_≥0)

HIGH CORRELATION

Distinct	7490
Distinct (%)	3.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	7471.30391
Minimum	1
Maximum	210005
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	1
5-th percentile	35
Q1	367
median	1608
Q3	6094
95-th percentile	36157
Maximum	210005
Range	210004
Interquartile range (IQR)	5727

Descriptive statistics

Standard deviation	17518.84739
Coefficient of variation (CV)	2.344817934
Kurtosis	32.78573724
Mean	7471.30391
Median Absolute Deviation (MAD)	1477
Skewness	5.010108012
Sum	1854810966
Variance	306910014
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
21	452	0.2%
9	438	0.2%
4	433	0.2%
20	415	0.2%
17	414	0.2%
14	404	0.2%
2	403	0.2%
27	394	0.2%
8	391	0.2%
19	388	0.2%
Other values (7480)	244126	98.3%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1	342	0.1%
2	403	0.2%
3	331	0.1%
4	433	0.2%
5	345	0.1%

Value	Count	Frequency (%)
210005	25	< 0.1%
209295	19	< 0.1%
205192	17	< 0.1%
202588	17	< 0.1%
200190	16	< 0.1%

AANTAL_SUBTRAJECT_PER_DIAG
Real number (ℝ_≥0)

HIGH CORRELATION

Distinct	8257
Distinct (%)	3.3%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	10488.71636
Minimum	1
Maximum	340654
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	1
5-th percentile	43
Q1	471
median	2184
Q3	8495
95-th percentile	50492
Maximum	340654
Range	340653
Interquartile range (IQR)	8024

Descriptive statistics

Standard deviation	25354.07365
Coefficient of variation (CV)	2.417271358
Kurtosis	36.96084773
Mean	10488.71636
Median Absolute Deviation (MAD)	2021
Skewness	5.281167133
Sum	2603907747
Variance	642829050.4
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
46	370	0.1%
4	363	0.1%
19	348	0.1%
2	341	0.1%
7	340	0.1%
18	339	0.1%
13	337	0.1%
15	336	0.1%
11	331	0.1%
34	329	0.1%
Other values (8247)	244824	98.6%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
1	298	0.1%
2	341	0.1%
3	315	0.1%
4	363	0.1%
5	313	0.1%

Value	Count	Frequency (%)
340654	25	< 0.1%
338481	19	< 0.1%
323773	20	< 0.1%
300764	17	< 0.1%
294010	17	< 0.1%

AANTAL_PAT_PER_SPC
Real number (ℝ_≥0)

HIGH CORRELATION

Distinct	241
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	654642.3406
Minimum	49
Maximum	1489781
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	49
5-th percentile	37910
Q1	246331
median	744820
Q3	995699
95-th percentile	1340532
Maximum	1489781
Range	1489732
Interquartile range (IQR)	749368

Descriptive statistics

Standard deviation	427431.7618
Coefficient of variation (CV)	0.6529241012
Kurtosis	-1.147838894
Mean	654642.3406
Median Absolute Deviation (MAD)	321866
Skewness	0.02596502876
Sum	1.625201982e+11
Variance	1.82697911e+11
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
881057	5102	2.1%
874401	4355	1.8%
843847	4348	1.8%
889324	4325	1.7%
865835	4263	1.7%
737536	4020	1.6%
1083151	3891	1.6%
1066686	3851	1.6%
1069100	3841	1.5%
1040555	3810	1.5%
Other values (231)	206452	83.2%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
49	8	< 0.1%
140	40	< 0.1%
296	87	< 0.1%
889	54	< 0.1%
1069	100	< 0.1%

Value	Count	Frequency (%)
1489781	2976	1.2%
1450955	3054	1.2%
1422234	3564	1.4%
1340532	3541	1.4%
1333856	3547	1.4%

AANTAL_SUBTRAJECT_PER_SPC
Real number (ℝ_≥0)

HIGH CORRELATION

Distinct	242
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%

Mean	1032064.413
Minimum	49
Maximum	2558785
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	49
5-th percentile	41243
Q1	351258
median	1010488
Q3	1727801
95-th percentile	2187018
Maximum	2558785
Range	2558736
Interquartile range (IQR)	1376543

Descriptive statistics

Standard deviation	727817.7627
Coefficient of variation (CV)	0.705205754
Kurtosis	-0.9645056149
Mean	1032064.413
Median Absolute Deviation (MAD)	670622
Skewness	0.2829950506
Sum	2.562182471e+11
Variance	5.297186956e+11
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1211801	5102	2.1%
1281531	4355	1.8%
1215953	4348	1.8%
1305530	4325	1.7%
1273792	4263	1.7%
1053212	4020	1.6%
2553407	3891	1.6%
2496304	3851	1.6%
2558785	3841	1.5%
2068196	3810	1.5%
Other values (232)	206452	83.2%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
49	8	< 0.1%
140	40	< 0.1%
296	9	< 0.1%
302	78	< 0.1%
895	54	< 0.1%

Value	Count	Frequency (%)
2558785	3841	1.5%
2553407	3891	1.6%
2496304	3851	1.6%
2187018	3757	1.5%
2068196	3810	1.5%

GEMIDDELDE_VERKOOPPRIJS
Real number (ℝ_≥0)

MISSING

Distinct	3061
Distinct (%)	1.5%
Missing	40673
Missing (%)	16.4%
Infinite	0
Infinite (%)	0.0%

Mean	3465.36703
Minimum	70
Maximum	287220
Zeros	0
Zeros (%)	0.0%
Memory size	1.9 MiB

Quantile statistics

Minimum	70
5-th percentile	140
Q1	455
median	1210
Q3	3935
95-th percentile	13130
Maximum	287220
Range	287150
Interquartile range (IQR)	3480

Descriptive statistics

Standard deviation	6601.384753
Coefficient of variation (CV)	1.904959762
Kurtosis	177.7395121
Mean	3465.36703
Median Absolute Deviation (MAD)	985
Skewness	8.099765665
Sum	719358215
Variance	43578280.66
Monotocity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
160	1804	0.7%
110	1667	0.7%
105	1585	0.6%
180	1400	0.6%
300	1228	0.5%
120	1225	0.5%
145	1198	0.5%
140	1197	0.5%
500	1129	0.5%
310	1106	0.4%
Other values (3051)	194046	78.2%
(Missing)	40673	16.4%

Minimum 5 values
Maximum 5 values

Value	Count	Frequency (%)
70	226	0.1%
75	75	< 0.1%
80	360	0.1%
85	852	0.3%
90	541	0.2%

Value	Count	Frequency (%)
287220	8	< 0.1%
148910	3	< 0.1%
142855	4	< 0.1%
122155	4	< 0.1%
116765	3	< 0.1%

Pearson's r

The Pearson's correlation coefficient (r) is a measure of linear correlation between two variables. It's value lies between -1 and +1, -1 indicating total negative linear correlation, 0 indicating no linear correlation and 1 indicating total positive linear correlation. Furthermore, r is invariant under separate changes in location and scale of the two variables, implying that for a linear function the angle to the x-axis does not affect r.

To calculate r for two variables X and Y, one divides the covariance of X and Y by the product of their standard deviations.

Spearman's ρ

The Spearman's rank correlation coefficient (ρ) is a measure of monotonic correlation between two variables, and is therefore better in catching nonlinear monotonic correlations than Pearson's r. It's value lies between -1 and +1, -1 indicating total negative monotonic correlation, 0 indicating no monotonic correlation and 1 indicating total positive monotonic correlation.

To calculate ρ for two variables X and Y, one divides the covariance of the rank variables of X and Y by the product of their standard deviations.

Kendall's τ

Similarly to Spearman's rank correlation coefficient, the Kendall rank correlation coefficient (τ) measures ordinal association between two variables. It's value lies between -1 and +1, -1 indicating total negative correlation, 0 indicating no correlation and 1 indicating total positive correlation.

To calculate τ for two variables X and Y, one determines the number of concordant and discordant pairs of observations. τ is given by the number of concordant pairs minus the discordant pairs divided by the total number of pairs.

Phik (φk)

Phik (φk) is a new and practical correlation coefficient that works consistently between categorical, ordinal and interval variables, captures non-linear dependency and reverts to the Pearson correlation coefficient in case of a bivariate normal input distribution. There is extensive documentation available here.

First rows

	VERSIE	DATUM_BESTAND	PEILDATUM	JAAR	BEHANDELEND_SPECIALISME_CD	TYPERENDE_DIAGNOSE_CD	ZORGPRODUCT_CD	AANTAL_PAT_PER_ZPD	AANTAL_SUBTRAJECT_PER_ZPD	AANTAL_PAT_PER_DIAG	AANTAL_SUBTRAJECT_PER_DIAG	AANTAL_PAT_PER_SPC	AANTAL_SUBTRAJECT_PER_SPC	GEMIDDELDE_VERKOOPPRIJS
0	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	979001188	1	1	2117	2547	1021797	1642254	28685.0
1	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	99899051	7	7	2117	2547	1021797	1642254	1005.0
2	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	979001223	2	2	2117	2547	1021797	1642254	6910.0
3	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	99899056	70	72	2117	2547	1021797	1642254	5380.0
4	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	99899026	455	465	2117	2547	1021797	1642254	210.0
5	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	979001220	1	1	2117	2547	1021797	1642254	4860.0
6	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	99899052	3	3	2117	2547	1021797	1642254	NaN
7	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	99899012	877	918	2117	2547	1021797	1642254	480.0
8	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	99899028	277	291	2117	2547	1021797	1642254	6525.0
9	1.0	2020-07-21	2020-07-01	2013-01-01	320	709	979001219	1	1	2117	2547	1021797	1642254	6540.0

Last rows

	VERSIE	DATUM_BESTAND	PEILDATUM	JAAR	BEHANDELEND_SPECIALISME_CD	TYPERENDE_DIAGNOSE_CD	ZORGPRODUCT_CD	AANTAL_PAT_PER_ZPD	AANTAL_SUBTRAJECT_PER_ZPD	AANTAL_PAT_PER_DIAG	AANTAL_SUBTRAJECT_PER_DIAG	AANTAL_PAT_PER_SPC	AANTAL_SUBTRAJECT_PER_SPC	GEMIDDELDE_VERKOOPPRIJS
248248	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027136	1	1	2932	5560	186223	340829	26050.0
248249	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027146	88	90	2932	5560	186223	340829	23880.0
248250	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027147	13	13	2932	5560	186223	340829	NaN
248251	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027131	84	92	2932	5560	186223	340829	165.0
248252	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027135	1	1	2932	5560	186223	340829	40575.0
248253	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027144	10	10	2932	5560	186223	340829	NaN
248254	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027150	41	44	2932	5560	186223	340829	NaN
248255	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027199	326	358	2932	5560	186223	340829	850.0
248256	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027151	477	604	2932	5560	186223	340829	3495.0
248257	1.0	2020-07-21	2020-07-01	2018-01-01	327	0216	990027198	2532	4263	2932	5560	186223	340829	220.0

Overview

Variables

Interactions

Correlations

Pearson's r

Spearman's ρ

Kendall's τ

Phik (φk)

Missing values

Sample

First rows

Last rows